PCF8576C
Universal LCD driver for low multiplex rates
Rev. 13 — 16 December 2013
Product data sheet
1. General description
The PCF8576C is a peripheral device which interfaces to almost any Liquid Crystal
Display (LCD)
1
with low multiplex rates. It generates the drive signals for any static or
multiplexed LCD containing up to four backplanes and up to 40 segments and can easily
be cascaded for larger LCD applications. The PCF8576C is compatible with most
microcontrollers and communicates via the two-line bidirectional I
2
C-bus. Communication
overheads are minimized by a display RAM with auto-incremented addressing and by
hardware subaddressing.
For a selection of NXP LCD segment drivers, see
Table 24 on page 52.
2. Features and benefits
Single-chip LCD controller and driver
40 segment drives:
Up to twenty 7-segment alphanumeric characters
Up to ten 14-segment alphanumeric characters
Any graphics of up to 160 elements
Versatile blinking modes
No external components required (even in multiple device applications)
Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing
Selectable display bias configuration: static,
1
⁄
2
, or
1
⁄
3
Internal LCD bias generation with voltage-follower buffers
40
4-bit RAM for display data storage
Auto-incremented display data loading across device subaddress boundaries
Display memory bank switching in static and duplex drive modes
Wide logic LCD supply range:
From 2 V for low-threshold LCDs
Up to 6 V for high-threshold twisted nematic LCDs
Low power consumption
May be cascaded for large LCD applications (up to 2560 elements possible)
No external components required
Separate or combined LCD and logic supplies
Optimized pinning for plane wiring in both single and multiple PCF8576C applications
Power-saving mode for extremely low power consumption in battery-operated and
telephone applications
1.
The definition of the abbreviations and acronyms used in this data sheet can be found in
Section 20.
NXP Semiconductors
PCF8576C
Universal LCD driver for low multiplex rates
3. Ordering information
Table 1.
Ordering information
Package
Name
PCF8576CHL/1
PCF8576CT/1
PCF8576CU/2/F2
PCF8576CU/F1
LQFP64
VSO56
bare die
bare die
Description
plastic low profile quad flat package;
64 leads; body 10
10
1.4 mm
plastic very small outline package, 56 leads
bare die; 56 bumps; 3.2
2.92
0.40 mm
wire bond die; 56 bonding pads; 3.2
2.92
0.38 mm
Version
SOT314-2
SOT190-1
PCF8576CU/2
PCF8576CU
Type number
3.1 Ordering options
Table 2.
Ordering options
Sales item (12NC)
935290305118
935290305157
PCF8576CT/1
PCF8576CU/2/F2
PCF8576CU/F1
935278818518
935261851026
935208600026
Orderable part
number
PCF8576CHL/1,118
PCF8576CHL/1,157
PCF8576CT/1,518
PCF8576CU/F1,026
IC
Delivery form
revision
1
1
1
1
tape and reel, 13 inch
tray pack
tape and reel, 13 inch, dry pack
chips in tray
chips in tray
Product type number
PCF8576CHL/1
PCF8576CU/2/F2,026 1
4. Marking
Table 3.
Marking codes
Marking code
PCF8576CHL
PCF8576CT
PC8576C-2
PC8576C-1
Product type number
PCF8576CHL/1
PCF8576CT/1
PCF8576CU/2/F2
PCF8576CU/F1
PCF8576C
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 13 — 16 December 2013
2 of 62
NXP Semiconductors
PCF8576C
Universal LCD driver for low multiplex rates
5. Block diagram
Fig 1.
Block diagram of PCF8576C
PCF8576C
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 13 — 16 December 2013
3 of 62
NXP Semiconductors
PCF8576C
Universal LCD driver for low multiplex rates
6. Pinning information
6.1 Pinning
Top view. For mechanical details, see
Figure 33.
Fig 2.
Pin configuration for LQFP64
(PCF8576CHL/1)
PCF8576C
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 13 — 16 December 2013
4 of 62
NXP Semiconductors
PCF8576C
Universal LCD driver for low multiplex rates
Top view. For mechanical details, see
Figure 34.
Fig 3.
Pin configuration for VSO56 (PCF8576CT/1)
PCF8576C
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 13 — 16 December 2013
5 of 62
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